Your pixel art is pretty good actually (Better than mine ). Its really good for a first game and you should be happy with it. You should try to add on to it and make it different than the other generic flappy bird clones. You could extract the source but like Sickan it looks like regular Java. Which I like ^_^. Btw your title says "Flapy" it should be "Flappy" unless you like it that way.